Roller Ring | Stable multi-mount parametric filament spool holder

prusaprinters

<p>Parametric filament spool holder designed for stability with multiple mounting options.&nbsp;</p><p>The design was motivated by the basic simplicity and efficiency of the roller configuration while trying to create a stable mechanism for any spool size and mounting position.</p><p><strong>Key Features</strong></p><ul><li>Fully parametric allowing complete control of all options from minimal lightweight to reinforced designs supporting virtually any spool size</li><li>Ring structure provides better stability with minimal filament and if using ABS, suffers less print warping compared to straight edges</li><li>Optional retainers prevent spool dislodging when weight reduced and allow mounting at any angle</li><li>Inner flanges on bearing holders negate the need for washers on the base</li><li>All parts can be printed apart from bearings</li><li>Spools can be changed quickly without tools</li></ul><p><strong>Instructions</strong></p><p>Alter the required values using the Customizer in OpenSCAD. The minimal configuration without retainers requires 4 bolts and nuts and 4 bearings. All parts are printable except the bearings.<br>If using the optional retainers, threaded rod can also be added between the retainers with 2 bearings to secure the spool at any angle. I have included printable substitutes for metal 8mm nuts, bolts and threaded rod that print well. See NUT JOB | Nut, Bolt, Washer and Threaded Rod Factory &nbsp;for more info.&nbsp;<a href="https://www.prusaprinters.org/prints/94761-nut-job-nut-bolt-washer-and-threaded-rod-factory">https://www.prusaprinters.org/prints/94761-nut-job-nut-bolt-washer-and-threaded-rod-factory</a></p><p>I recommend using at least 40% fill for the base and 100% fill for the nuts, bolts and threaded rod.</p>